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gmp_pow

PHP function Edit on GitHub ✎

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

Raise number into power

Description

gmp_pow(GMP|int|string $num, int $exponent): GMP

Raise num into power exponent.

Parameters

num

The base number.

Parameter

exponent

The positive power to raise the num.

Return Values

The new (raised) number, as a GMP number. The case of 0^0 yields 1.

Examples

gmp_pow() example

php
<?php
$pow1 = gmp_pow("2", 31);
echo gmp_strval($pow1) . "\n";
$pow2 = gmp_pow("0", 0);
echo gmp_strval($pow2) . "\n";
$pow3 = gmp_pow("2", -1); // Negative exp, generates warning
echo gmp_strval($pow3) . "\n";
?>

The above example will output:

output
2147483648
1

Source: reference/gmp/functions/gmp-pow.xml · from the official PHP manual (php/doc-en)